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mpv/osdep/macos/remote_command_center.swift
der richter f79a591ae4 cocoa-cb: generalisation of backend independent parts
move all backend independent code parts in their own folder and files,
to simplify adding new backends. the goal is to only extend one class
and add the backend dependent parts there. usually only the (un)init,
config and related parts need to be implemented per backend. furthermore
all needed windowing and related events are propagated and can be
overwritten. the other backend dependent part is usually the surface for
rendering, for example the opengl oder metal layer.

in the best case a new backend can be added with only a few hundred
lines.
2020-08-22 14:22:49 +02:00

195 lines
6.5 KiB
Swift

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
import MediaPlayer
@available(macOS 10.12.2, *)
class RemoteCommandCenter: NSObject {
enum KeyType {
case normal
case repeatable
}
var config: [MPRemoteCommand:[String:Any]] = [
MPRemoteCommandCenter.shared().pauseCommand: [
"mpKey": MP_KEY_PAUSEONLY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().playCommand: [
"mpKey": MP_KEY_PLAYONLY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().stopCommand: [
"mpKey": MP_KEY_STOP,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().nextTrackCommand: [
"mpKey": MP_KEY_NEXT,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().previousTrackCommand: [
"mpKey": MP_KEY_PREV,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().togglePlayPauseCommand: [
"mpKey": MP_KEY_PLAY,
"keyType": KeyType.normal
],
MPRemoteCommandCenter.shared().seekForwardCommand: [
"mpKey": MP_KEY_FORWARD,
"keyType": KeyType.repeatable,
"state": MP_KEY_STATE_UP
],
MPRemoteCommandCenter.shared().seekBackwardCommand: [
"mpKey": MP_KEY_REWIND,
"keyType": KeyType.repeatable,
"state": MP_KEY_STATE_UP
],
]
var nowPlayingInfo: [String: Any] = [
MPNowPlayingInfoPropertyMediaType: NSNumber(value: MPNowPlayingInfoMediaType.video.rawValue),
MPNowPlayingInfoPropertyDefaultPlaybackRate: NSNumber(value: 1),
MPNowPlayingInfoPropertyPlaybackProgress: NSNumber(value: 0.0),
MPMediaItemPropertyPlaybackDuration: NSNumber(value: 0),
MPMediaItemPropertyTitle: "mpv",
MPMediaItemPropertyAlbumTitle: "mpv",
MPMediaItemPropertyArtist: "mpv",
]
let disabledCommands: [MPRemoteCommand] = [
MPRemoteCommandCenter.shared().changePlaybackRateCommand,
MPRemoteCommandCenter.shared().changeRepeatModeCommand,
MPRemoteCommandCenter.shared().changeShuffleModeCommand,
MPRemoteCommandCenter.shared().skipForwardCommand,
MPRemoteCommandCenter.shared().skipBackwardCommand,
MPRemoteCommandCenter.shared().changePlaybackPositionCommand,
MPRemoteCommandCenter.shared().enableLanguageOptionCommand,
MPRemoteCommandCenter.shared().disableLanguageOptionCommand,
MPRemoteCommandCenter.shared().ratingCommand,
MPRemoteCommandCenter.shared().likeCommand,
MPRemoteCommandCenter.shared().dislikeCommand,
MPRemoteCommandCenter.shared().bookmarkCommand,
]
var mpInfoCenter: MPNowPlayingInfoCenter { get { return MPNowPlayingInfoCenter.default() } }
var isPaused: Bool = false { didSet { updatePlaybackState() } }
@objc override init() {
super.init()
for cmd in disabledCommands {
cmd.isEnabled = false
}
}
@objc func start() {
for (cmd, _) in config {
cmd.isEnabled = true
cmd.addTarget { [unowned self] event in
return self.cmdHandler(event)
}
}
if let app = NSApp as? Application, let icon = app.getMPVIcon(),
#available(macOS 10.13.2, *)
{
let albumArt = MPMediaItemArtwork(boundsSize: icon.size) { _ in
return icon
}
nowPlayingInfo[MPMediaItemPropertyArtwork] = albumArt
}
mpInfoCenter.nowPlayingInfo = nowPlayingInfo
mpInfoCenter.playbackState = .playing
NotificationCenter.default.addObserver(
self,
selector: #selector(self.makeCurrent),
name: NSApplication.willBecomeActiveNotification,
object: nil
)
}
@objc func stop() {
for (cmd, _) in config {
cmd.isEnabled = false
cmd.removeTarget(nil)
}
mpInfoCenter.nowPlayingInfo = nil
mpInfoCenter.playbackState = .unknown
}
@objc func makeCurrent(notification: NSNotification) {
mpInfoCenter.playbackState = .paused
mpInfoCenter.playbackState = .playing
updatePlaybackState()
}
func updatePlaybackState() {
mpInfoCenter.playbackState = isPaused ? .paused : .playing
}
func cmdHandler(_ event: MPRemoteCommandEvent) -> MPRemoteCommandHandlerStatus {
guard let cmdConfig = config[event.command],
let mpKey = cmdConfig["mpKey"] as? Int32,
let keyType = cmdConfig["keyType"] as? KeyType else
{
return .commandFailed
}
var state = cmdConfig["state"] as? UInt32 ?? 0
if let currentState = cmdConfig["state"] as? UInt32, keyType == .repeatable {
state = MP_KEY_STATE_DOWN
config[event.command]?["state"] = MP_KEY_STATE_DOWN
if currentState == MP_KEY_STATE_DOWN {
state = MP_KEY_STATE_UP
config[event.command]?["state"] = MP_KEY_STATE_UP
}
}
EventsResponder.sharedInstance().handleMPKey(mpKey, withMask: Int32(state))
return .success
}
@objc func processEvent(_ event: UnsafeMutablePointer<mpv_event>) {
switch event.pointee.event_id {
case MPV_EVENT_PROPERTY_CHANGE:
handlePropertyChange(event)
default:
break
}
}
func handlePropertyChange(_ event: UnsafeMutablePointer<mpv_event>) {
let pData = OpaquePointer(event.pointee.data)
guard let property = UnsafePointer<mpv_event_property>(pData)?.pointee else {
return
}
switch String(cString: property.name) {
case "pause" where property.format == MPV_FORMAT_FLAG:
isPaused = LibmpvHelper.mpvFlagToBool(property.data) ?? false
default:
break
}
}
}